Oil screen dust filter for civil air defense ventilation pipeline

Abstract

The invention belongs to the technical field of dust filters, and particularly relates to an oil screen dust filter for a civil air defense ventilation pipeline, the oil screen dust filter comprises a main body box, the bottom of the main body box is provided with an air delivery pipe, and the top of the main body box is provided with an air inlet mechanism; the oil nets are uniformly mounted on the side, close to the air inlet mechanism, of the interior of the main body box; the treatment mechanism is installed on the lower portion of the interior of the main body box and used for receiving and collecting oil products dripping from the oil screen, the air inlet mechanism is arranged, external air enters the main body box through the filter screen, impurities such as smoke dust large particles accumulated above the filter screen are cleared away by the vibration assembly, the filter screen keeps air permeability, and therefore the air inlet mechanism is used for collecting the oil products dripping from the oil screen. The oil screen is prevented from being in direct contact with smoke dust in weather with much smoke dust, the surface of the oil screen is prevented from being directly covered with impurities such as dust, the service time of the oil screen is shortened, normal air inlet of equipment is not affected, and in normal weather, the surface of the filter screen naturally falls, and dust on the top of the filter screen is shaken off.

Description

Technical Field

[0001] The invention belongs to the technical field of dust filters, in particular to an oil net dust filter for civil air defense ventilation ducts. Background Art

[0002] Civil air defense projects refer to underground protective buildings built separately to ensure the shelter of personnel and materials, civil air defense command, and medical rescue in wartime, as well as basements built in combination with ground buildings that can be used for air defense in wartime. Civil air defense ventilation ducts are required for ventilation in civil air defense projects. Civil air defense ventilation ducts are a piping system used in civil air defense projects. They are mainly used for the safe evacuation and survival of people in emergency situations. They have multiple functions such as ventilation, smoke exhaust, and anti-toxicity. In the design and installation process of civil air defense ventilation ducts, it is often necessary to set up oil mesh dust filters to filter the air passing through the civil air defense ventilation ducts to ensure the cleanliness of the air and avoid harmful gases from causing harm to personnel.

[0003] In daily use, due to weather changes, the content of dust and sand in the air increases dramatically. The outside air directly enters the oil mesh dust filter, which will directly cause a large amount of particulate impurities to adhere to the surface of the oil mesh, causing the oil mesh to need to be replaced directly after the weather improves and cannot continue to work. When replacing the oil mesh, the oil mesh is not fully drained after soaking, and too much oil remains on the surface, which drips due to gravity or airflow after installation. Summary of the invention

[0004] In view of the shortcomings of the prior art, the technical solution adopted by the present invention to solve the technical problems is: an oil net dust filter for civil air defense ventilation duct, comprising: a main body box, the bottom of which is provided with an air delivery pipe, and the top of the main body box mechanism is provided with an air intake mechanism; an oil net, which is evenly installed on one side of the main body box near the air intake mechanism; a processing mechanism, which is installed at the bottom of the main body box, and is used to receive and collect the oil products dripping from the oil net; The processing mechanism comprises: A bracket, wherein the bracket is installed on the inner wall of the gas transmission pipe; A collecting assembly, the collecting assembly being mounted on the top of the bracket and used for collecting the dripping oil droplets at the bottom thereof; The oil absorption component is arranged on the top of the collecting component, and is used for adsorbing and collecting the collected oil products.

[0005] Furthermore, the air intake mechanism includes: an air inlet, which is arranged on the top of the main body box, and the inner wall of the air inlet is rotatably connected to a rotating ring, and the inner diameter of the rotating ring is the same as the inner diameter of the air inlet; a vibration component, a center rod is installed on the inner wall of the rotating ring, and the vibration component is rotatably connected at the central axis of the center rod; a filter, which is installed on the inner wall of the rotating ring, and the filter is made of flexible breathable fabric, so that the outside air passes through the filter before entering the main body box, and large particles of smoke and dust and other debris accumulated above the filter are cleaned up by the vibration component, so that the filter maintains air permeability, avoiding direct contact between the oil net and the smoke and dust in weather with a lot of smoke and dust, so that the surface of the oil net is directly covered by dust and other debris, shortening the use time of the oil net, maintaining air permeability, and not affecting the normal air intake of the equipment. In normal weather, the rotating ring is opened and rotated 180 degrees to make the surface of the filter fall naturally, and the dust on the top of the filter is shaken off.

[0006] Furthermore, the processing mechanism also includes: a collecting tray, which is installed on the inner wall of the main box, and the bottom of the collecting tray is evenly provided with transmission pipes, and the bottom of the transmission pipe is in contact with the top of the oil suction component; a concentrating component, which is installed on the top of the oil suction component, and is used to concentrate the oil dripping into the collecting tray so that it can quickly enter the oil suction component through the transmission pipe. The concentrating component collects the oil dripping around the oil net to prevent the oil on the edge from tilting due to the action of wind, resulting in adhesion to the inner wall of the main box and difficult to clean. Through the cooperation of the concentrating component and the collecting component, the dripping oil can be quickly collected and concentrated in the oil suction component. After being stored in the oil suction component, the excess oil can reduce oxidation and contact with dust in the air. After accumulating the oil for several oil net replacements, the oil in the oil suction component can be used to properly replenish the dried oil net. The oil suction component smears the excess oil on the bottom of the oil net to increase the maintenance time of the workers, extend the use effect of the oil net, and reduce the waste of oil.

[0007] Furthermore, the vibration assembly includes: a motor, the motor is installed in the middle of the center rod, the outer wall of the motor is rotatably connected to a connecting rod, and the connecting rod is provided with two; a counterweight block, the outer wall of the counterweight block is rotatably connected to the bottom of the connecting rod; a fixed pad, the fixed pad is installed on the side of the motor close to the connecting rod, a spring is installed at the bottom of the fixed pad, and a movable pad is provided at the bottom of the spring, the movable pad and the spring work together, and the spring elastic force is used to make the counterweight block vibrate up and down during use, so as to clean the filter screen. The motor drives the connecting rod to rotate and move closer to each other, so that the connecting rod stretches and the counterweight is lifted. Then the power is cut off and the counterweight falls downward onto the moving pad under the action of gravity, which squeezes the spring. Due to the effect of elastic potential energy, a relative up and down force is generated between the moving pad and the counterweight, thereby achieving the up and down shaking of the filter. After the elastic potential energy is smaller, the motor is turned on again to save energy. At the same time, the surface of the filter is shaken and cleaned to maintain the air permeability of the filter, reduce the load of the oil net in dusty weather, and extend the use and maintenance time of the oil net.

[0008] Furthermore, the collection component includes: a conical plate, the conical plate is installed on the top of the bracket, a support rod is arranged on the top of the bracket, the support rod props up the conical plate from the bottom, and the surface of the conical plate is evenly provided with guide grooves. The collection component also includes: air holes, the air holes are arranged on the surface of the conical plate, the air holes and the guide grooves are arranged alternately; an arc edge, the arc edge is arranged at the edge of the bottom of the conical plate, and the inside of the arc edge collects and concentrates the oil flowing down from the top of the conical plate.

[0009] Furthermore, the oil suction assembly includes: a drive seat, which is installed on the top of the bracket, and the inner wall of the drive seat is evenly provided with rotating rods, and the outer wall of the rotating rod is rotatably connected to the inner wall of the drive seat; an electric push rod, which is installed at the end of the rotating rod, and the end of the electric push rod away from the rotating rod is rotatably connected to a mounting plate; a sponge block, which is fixedly connected to the mounting plate, and the shape of the sponge block conforms to the inner wall of the arc edge and the inner wall of the main body box, so that the electric push rod drives the sponge block upward, and a drive is arranged at the end of the electric push rod to rotate the mounting plate, so that the sponge block faces the oil net, and under the extrusion of the electric push rod, the oil in the sponge block is squeezed and smeared on the oil net, thereby increasing the oil on the surface of the oil net to extend the service life of the oil net, thereby providing a period of time for the staff to overhaul and maintain the working effect of the oil net to avoid affecting the air filtration quality.

[0010] Furthermore, the centralization component includes: a mounting frame, the mounting frame is arranged on the top of the collection tray, the mounting frame is provided with four mounting frames, and the inner wall of the mounting frame is provided with a fixing ring; a telescopic rod, the telescopic rod is arranged on the top of the mounting frame, the movable end of the telescopic rod is symmetrically provided with a connecting rod, and the outer wall of the connecting rod is rotatably connected with the outer wall of the telescopic rod. The centralization component also includes: a limiting rod, the inner wall of the limiting rod is sleeved with the outer wall of the fixing ring, and the top of the limiting rod is rotatably connected with the bottom of the connecting rod; a scraper, the scraper is arranged on the bottom of the limiting rod, and the side of the scraper is slidably connected with the inner wall of the collection tray, so that the scraper concentrates the oil in the collection tray near the transmission pipe, so that the oil quickly flows along the transmission pipe to the oil suction assembly, collects the oil dripping from the edge of the oil net and quickly concentrates and merges, avoids the dripping oil droplets adhering to the inner wall of the main box, causing difficulty in cleaning, and causes the oil to oxidize and corrode the inner wall of the main box, so that the dripping oil is quickly concentrated in the oil suction assembly, reduces the contact between the oil and impurities, and allows the oil to be quickly collected.

[0011] The beneficial effects of the present invention are as follows: 1. The present invention sets an air intake mechanism so that the outside air first passes through the filter and then enters the main box. The large particles of smoke and dust accumulated above the filter are cleaned up by the vibration component, so that the filter maintains air permeability and avoids direct contact between the oil net and smoke in weather with a lot of smoke and dust, so that the surface of the oil net is directly covered by dust and other debris, shortening the use time of the oil net, maintaining air permeability and not affecting the normal air intake of the equipment. In normal weather, the rotating ring is opened and rotated 180 degrees to make the surface of the filter fall naturally, and the dust on the top of the filter is shaken off.

[0012] 2. The present invention collects the oil dripping around the oil net by setting a processing mechanism to prevent the oil on the edge from tilting due to the effect of wind, resulting in adhesion to the inner wall of the main box and being difficult to clean. The concentrated component cooperates with the collecting component to quickly collect and concentrate the dripping oil in the oil absorption component. After being stored in the oil absorption component, the excess oil can reduce oxidation and contact with dust in the air. After accumulating the oil for several oil net replacements, the oil in the oil absorption component can be used to properly replenish the dried oil net. The oil absorption component smears the excess oil on the bottom of the oil net to increase the maintenance time of the workers, extend the use effect of the oil net, and reduce the waste of oil.

[0013] 3. The present invention arranges an oil absorption assembly so that the electric push rod drives the sponge block upwards, and a drive is arranged at the end of the electric push rod to rotate the mounting plate, so that the sponge block faces the oil net, and the oil absorbed in the sponge block is squeezed and smeared on the oil net under the squeezing of the electric push rod, thereby increasing the oil on the surface of the oil net to extend the service life of the oil net, thereby providing a period of time for the staff to overhaul and maintain the working effect of the oil net to avoid affecting the air filtration quality.

[0014] 4. The present invention sets a centralizing component so that the scraper collects the oil in the collection tray near the transmission pipe, so that the oil quickly flows along the transmission pipe to the oil suction component, collects the oil dripping from the edge of the oil net and quickly concentrates it, so as to avoid the dripping oil droplets adhering to the inner wall of the main box, making it difficult to clean, causing the oil to oxidize and corrode the inner wall of the main box, and quickly concentrates the dripping oil in the oil suction component, thereby reducing the contact between the oil and impurities and allowing the oil to be quickly collected. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 It is a structural schematic diagram of the air intake mechanism of the present invention; Figure 4 is a bottom view of the processing mechanism of the present invention; Figure 5 It is a structural schematic diagram of the processing mechanism of the present invention; Figure 6 It is a schematic diagram of the structure of the vibration assembly of the present invention; Figure 7 It is a schematic diagram of the structure of the collection component of the present invention; Figure 8 It is a schematic diagram of the structure of the oil absorption assembly of the present invention; Fig. 9 It is a structural schematic diagram of the centralized components of the present invention.

[0016] In the figure: 1, main box; 2, air pipe; 3, air intake mechanism; 301, air inlet; 302, rotating ring; 303, center rod; 304, vibration assembly; 3041, motor; 3042, fixed pad; 3043, spring; 3044, movable pad; 3045, connecting rod; 3046, counterweight; 305, filter; 4, oil net; 5, processing mechanism; 501, bracket; 502, collection assembly; 5021, cone plate; 5022, curved edge ; 5023, air vent; 5024, guide groove; 5025, support rod; 503, oil suction assembly; 5031, drive seat; 5032, rotating rod; 5033, electric push rod; 5034, mounting plate; 5035, sponge block; 504, transmission pipe; 505, collection tray; 506, central assembly; 5061, mounting frame; 5062, fixing ring; 5063, telescopic rod; 5064, connecting rod; 5065, limit rod; 5066, scraper. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0018] Example 1, please refer to Figure 1-Figure 5 The present invention provides a technical solution: an oil net dust filter for civil air defense ventilation duct is described as follows.

[0019] It comprises: a main body box 1, a gas pipe 2 is arranged at the bottom of the main body box 1, an air intake mechanism 3 is installed at the top of the main body box 1; an oil net 4, the oil net 4 is evenly installed on one side of the inside of the main body box 1 close to the air intake mechanism 3; a processing mechanism 5, the processing mechanism 5 is installed at the bottom of the inside of the main body box 1, and the processing mechanism 5 is used to receive and collect the oil dripping from the oil net 4.

[0020] During operation, the main box 1 works, the air intake mechanism 3 opens, and the outside air is sucked in from the air intake mechanism 3 into the interior of the main box 1, and then filtered through the oil net 4 into the air pipe 2. The oil net 4 filters the particles and dust in the air. During the initial installation, the oil droplets on the oil net 4 will drip downward due to gravity, and the dripping oil will be collected after being received by the processing mechanism 5, and kept for accumulation inside the processing mechanism 5. After a period of time, the oil in the oil net 4 gradually dries or decreases, and the accumulated oil in the processing mechanism 5 is squeezed out again and smeared on the bottom of the oil net 4, thereby extending the service life of the oil net 4. In dusty weather, the air intake mechanism 3 is buckled to preliminarily filter the outside air, reduce the contact between dust and the oil net 4, and further extend the service life of the oil net 4.

[0021] The air intake mechanism 3 includes: an air inlet 301, which is arranged at the top of the main box 1, and the inner wall of the air inlet 301 is rotatably connected with a rotating ring 302, and the inner diameter of the rotating ring 302 is the same as the inner diameter of the air inlet 301; a vibration component 304, a center rod 303 is installed on the inner wall of the rotating ring 302, and the vibration component 304 is rotatably connected to the central axis of the center rod 303; a filter 305, the filter 305 is installed on the inner wall of the rotating ring 302, and the material of the filter 305 is flexible and breathable fabric.

[0022] Initially, the rotating ring 302 drives the filter 305 to be in an open state. When the dust content in the air is relatively high, the built-in drive of the air inlet 301 drives the rotating ring 302 to rotate and cover the filter 305 on the surface of the air inlet 301, so that the outside air passes through the filter 305 before entering the main box 1. The large particles of smoke and dust accumulated above the filter 305 are cleaned up by the vibration component 304, so that the filter 305 maintains air permeability, avoiding direct contact between the oil net 4 and the smoke in weather with a lot of smoke and dust, so that the surface of the oil net 4 is directly covered by dust and other debris, shortening the use time of the oil net 4, maintaining air permeability, and not affecting the normal air intake of the equipment. In normal weather, the rotating ring 302 is opened and rotated 180 degrees to make the surface of the filter 305 fall naturally, and the dust on the top of the filter 305 is shaken off.

[0023] The processing mechanism 5 includes: a bracket 501, the bracket 501 is installed on the inner wall of the gas transmission pipe 2; a collecting component 502, the collecting component 502 is installed on the top of the bracket 501, and the collecting component 502 is used to collect the dripping oil droplets at its bottom; an oil suction component 503, the oil suction component 503 is arranged on the top of the collecting component 502, and the oil suction component 503 is used to absorb and collect the collected oil products; the processing mechanism 5 also includes: a collecting tray 505, the collecting tray 505 is installed on the inner wall of the main box 1, and the collecting tray 505 is used to collect the oil products dripping from the edge of the oil net 4 to prevent the oil products at the edge from being absorbed by the oil net 4. The wind causes the oil to tilt, which causes it to adhere to the inner wall of the main box 1 and is difficult to clean, affecting the air quality. The bottom of the collection tray 505 is evenly provided with a transmission tube 504. The collection tray 505 and the transmission tube 504 are made of hard material, and the surface in contact with the oil is coated with a coating that is not easy to stick to oil. The bottom of the transmission tube 504 is in contact with the top of the oil suction component 503; the concentration component 506 is installed on the top of the oil suction component 503. The concentration component 506 is used to concentrate the oil that drips into the collection tray 505, so that it can quickly pass through the transmission tube 504 and enter the oil suction component 503.

[0024] When the oil net 4 is installed for a short time, due to the effect of gravity and improper operation of the staff, there is too much oil on the surface of the oil net 4 and it causes dripping. At this time, the collecting component 502 collects and concentrates the dripping oil, and the concentrating component 506 collects the oil dripping around the oil net 4 to prevent the oil on the edge from tilting due to the effect of wind, causing it to adhere to the inner wall of the main box 1 and be difficult to clean. The concentrating component 506 cooperates with the collecting component 502 to quickly collect and concentrate the dripping oil in the oil absorption component 503. After being stored in the oil absorption component 503, the excess oil can reduce oxidation and contact with dust in the air. After accumulating the oil replaced by the oil net 4 several times, the oil in the oil absorption component 503 can be used to properly replenish the dried oil net 4. The oil absorption component 503 smears the excess oil on the bottom of the oil net 4 to increase the maintenance time of the workers, extend the use effect of the oil net 4, and reduce the waste of oil.

[0025] Example 2, please refer to Figure 1-Figure 9 The present invention provides a technical solution: on the basis of Example 1, the vibration component 304 includes: a motor 3041, the motor 3041 is installed in the middle of the center rod 303, the outer wall of the motor 3041 is rotatably connected to the connecting rod 3045, and the connecting rod 3045 is provided with two; a counterweight block 3046, the outer wall of the counterweight block 3046 is rotatably connected to the bottom of the connecting rod 3045; a fixed pad 3042, the fixed pad 3042 is installed on the side of the motor 3041 close to the connecting rod 3045, a spring 3043 is installed at the bottom of the fixed pad 3042, and a movable pad 3044 is provided at the bottom of the spring 3043, the movable pad 3044 and the spring 3043 work together, and when in use, the elastic force of the spring 3043 is used to make the counterweight block 3046 vibrate up and down, thereby cleaning the filter 305.

[0026] After the rotating ring 302 is buckled on the air inlet 301, the filter 305 is located on the surface of the air inlet 301. At this time, the air with a high dust content enters the main box 1 through the filter 305. The dust gradually accumulates on the surface of the filter 305, which easily affects the air intake rate. At this time, the rotating ring 302 drives the counterweight block 3046 upward, and drives the connecting rod 3045 to rotate and approach each other through the motor 3041, so that the connecting rod 3045 is extended, and the counterweight block 3046 is lifted up. Then the power is turned off, and the counterweight block 3046 is operated by gravity. The oil filter 305 is then dropped downward onto the movable pad 3044, so that the spring 3043 is squeezed. Due to the elastic potential energy, a relative up and down force is generated between the movable pad 3044 and the counterweight 3046, thereby realizing the up and down shaking of the filter 305. After the elastic potential energy is smaller, the motor 3041 is turned on again to save energy. At the same time, the surface of the filter 305 is shaken and cleaned to maintain the air permeability of the filter 305, reduce the load of the oil net 4 in dusty weather, and extend the use and maintenance time of the oil net 4.

[0027] The collecting component 502 includes: a conical plate 5021, which is made of a hard material and has an oil-free coating on the surface. The conical plate 5021 is installed on the top of the bracket 501. A support rod 5025 is provided on the top of the bracket 501. The support rod 5025 supports the conical plate 5021 from the bottom. The surface of the conical plate 5021 is evenly provided with guide grooves 5024. The guide grooves 5024 are conducive to the oil being concentrated in the arc edge 5022 after dripping. The collecting component 502 also includes: an air hole 5023, the inner wall of the air hole 5023 is provided with an air-permeable screen, the air hole 5023 is opened on the surface of the conical plate 5021, and the air hole 5023 and the guide groove 5024 are staggered; an arcuate edge 5022, the arcuate edge 5022 is arranged at the edge of the bottom of the conical plate 5021, and the inside of the arcuate edge 5022 collects and concentrates the oil flowing down from the top of the conical plate 5021.

[0028] The oil dripping from the oil net 4 is caught by the conical plate 5021 and flows into the arc edge 5022 along the guide groove 5024 , and the air enters the air delivery pipe 2 through the screen on the air hole 5023 .

[0029] The central component 506 includes: a mounting frame 5061, which is arranged on the top of the collection tray 505, and there are four mounting frames 5061, and a fixing ring 5062 is arranged on the inner wall of the mounting frame 5061; a telescopic rod 5063, which is arranged on the top of the mounting frame 5061, and a connecting rod 5064 is symmetrically arranged on the movable end of the telescopic rod 5063, and the outer wall of the connecting rod 5064 is rotatably connected with the outer wall of the telescopic rod 5063. The central component 506 also includes: a limiting rod 5065, the inner wall of the limiting rod 5065 is sleeved with the outer wall of the fixing ring 5062, the aperture of the limiting rod 5065 is larger than the outer diameter of the fixing ring 5062, and the top of the limiting rod 5065 is rotatably connected with the bottom of the connecting rod 5064; and a scraper 5066, which is installed at the bottom of the limiting rod 5065, and the side of the scraper 5066 is slidably connected with the inner wall of the collection tray 505.

[0030] When the oil on the oil net 4 drips down, it is caught by the conical plate 5021 and collected on the arc edge 5022. After the oil dripping from the edge of the oil net 4 is caught by the collecting tray 505, it contacts and merges with the oil suction through the transmission pipe 504 and is collected on the oil suction assembly 503. Subsequently, the oil collected by the collecting tray 505 is not easy to be concentrated and flow quickly. At this time, the built-in drive of the mounting frame 5061 drives the telescopic rod 5063 to telescope back and forth, so that the connecting rod 5064 drives the limiting rod 5065 to move between the fixing ring 5062 and the fixing ring 5063. The scraper 5066 moves back and forth on the upper part, so that the scraper 5066 collects the oil in the collection tray 505 near the transmission pipe 504, and the oil quickly flows along the transmission pipe 504 to the oil suction component 503, and the oil dripping on the edge of the oil net 4 is collected and quickly concentrated, so as to prevent the dripping oil droplets from adhering to the inner wall of the main box 1, making it difficult to clean, causing the oil to oxidize and corrode the inner wall of the main box 1, and the dripping oil is quickly concentrated in the oil suction component 503, thereby reducing the contact between the oil and impurities and allowing the oil to be quickly collected.

[0031] The oil suction assembly 503 includes: a driving seat 5031, which is installed on the top of the bracket 501, and the driving seat 5031 is rotatably connected to the top of the bracket 501. The inner wall of the driving seat 5031 is evenly provided with rotating rods 5032, and the outer wall of the rotating rod 5032 is rotatably connected to the inner wall of the driving seat 5031; an electric push rod 5033, which is installed at the end of the rotating rod 5032, and the end of the electric push rod 5033 away from the rotating rod 5032 is rotatably connected to the mounting plate 5034; a sponge block 5035, which is fixedly connected to the mounting plate 5034, and the top of the sponge block 5035 is in contact with the transmission tube 504, and the shape of the sponge block 5035 is consistent with the inner wall of the arc edge 5022 and the inner wall of the main box 1.

[0032] The oil in the transmission pipe 504 directly enters the sponge block 5035. The oil collected by the arc-shaped edge 5022 is rotated by the driving seat 5031, so that the sponge block 5035 absorbs the oil in the arc-shaped edge 5022. When the sponge block 5035 absorbs and stores a lot of oil, when the oil on the surface of the oil net 4 is dry or its service life is about to end, the driving seat 5031 drives the rotating rod 5032 to rotate, so that the electric push rod 5033 drives the sponge block 5035 upward. The end of the electric push rod 5033 is provided with a drive to rotate the mounting plate 5034, so that the sponge block 5035 faces the oil net 4, and under the extrusion of the electric push rod 5033, the oil in the sponge block 5035 is squeezed and smeared on the oil net 4, thereby increasing the oil on the surface of the oil net 4 to extend the service life of the oil net 4, thereby providing a period of time for the maintenance of the staff and maintaining the working effect of the oil net 4 to avoid affecting the air filtration quality.

[0033] The specific workflow is as follows: During operation, the main box 1 is in operation, and the air intake mechanism 3 is opened. Initially, the rotating ring 302 drives the filter 305 to be in an open state. When the dust content in the air is relatively high, the built-in drive of the air inlet 301 drives the rotating ring 302 to rotate and cover the filter 305 on the surface of the air inlet 301, so that the outside air first passes through the filter 305 and then enters the main box 1. The large particles of smoke and dust accumulated above the filter 305 are cleaned up by the vibration component 304. In normal weather, the rotating ring 302 is opened and rotated 180 degrees, so that the surface of the filter 305 naturally hangs down, and the dust on the top of the filter 305 is shaken off; External air is sucked in from the air intake mechanism 3 and enters the interior of the main box 1, and then enters the air supply pipe 2 after being filtered by the oil net 4. The oil net 4 filters particles and dust in the air. Not long after the oil net 4 is installed, due to gravity and improper operation by the staff, there is too much oil on the surface of the oil net 4 and it causes dripping. At this time, the collecting component 502 collects and concentrates the dripping oil, and the concentrating component 506 collects the oil dripping around the oil net 4. The concentrating component 506 cooperates with the collecting component 502 to quickly collect and concentrate the dripping oil in the oil absorption component 503. After being stored in the oil absorption component 503, the excess oil can reduce oxidation and contact with dust in the air. After accumulating the oil replaced by the oil net 4 several times, the oil in the oil absorption component 503 can be used to properly supplement the dried oil net 4. The oil absorption component 503 smears the excess oil on the bottom of the oil net 4 to increase the maintenance time of the workers, extend the use effect of the oil net 4, and reduce the waste of oil.

[0034] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An oil net dust filter for civil air defense ventilation duct, characterized in that: include: A main body box (1), wherein an air delivery pipe (2) is arranged at the bottom of the main body box (1), and an air intake mechanism (3) is installed at the top of the main body box (1); An oil screen (4), the oil screen (4) being evenly mounted on a side of the main body box (1) close to the air intake mechanism (3); A processing mechanism (5), the processing mechanism (5) being installed at the lower part of the main box (1), the processing mechanism (5) being used to receive and collect the oil dripping from the oil net (4); The processing mechanism (5) comprises: A bracket (501), wherein the bracket (501) is installed on the inner wall of the gas transmission pipe (2); A collecting assembly (502), the collecting assembly (502) being mounted on the top of the bracket (501), and the collecting assembly (502) being used to collect dripping oil droplets at the bottom thereof; An oil absorption component (503) is arranged on the top of the collection component (502), and the oil absorption component (503) is used to absorb and collect the collected oil.

2. The oil net dust filter for civil air defense ventilation duct according to claim 1, characterized in that: The air intake mechanism (3) comprises: An air inlet (301), the air inlet (301) being arranged at the top of the main box (1), the inner wall of the air inlet (301) being rotatably connected to a rotating ring (302), the inner diameter of the rotating ring (302) being the same as the inner diameter of the air inlet (301); A vibration component (304), wherein a central rod (303) is mounted on the inner wall of the rotating ring (302), and the vibration component (304) is rotatably connected to the central axis of the central rod (303); A filter screen (305) is installed on the inner wall of the rotating ring (302), and the material of the filter screen (305) is a flexible breathable fabric.

3. The oil net dust filter for civil air defense ventilation duct according to claim 1, characterized in that: The processing mechanism (5) further comprises: A collecting tray (505), the collecting tray (505) being mounted on the inner wall of the main box (1), the bottom of the collecting tray (505) being evenly provided with transmission pipes (504), the bottom of the transmission pipes (504) being in contact with the top of the oil absorption assembly (503); A concentrating assembly (506) is installed on the top of the oil suction assembly (503). The concentrating assembly (506) is used to concentrate the oil dripping into the collection tray (505) so that the oil can quickly enter the oil suction assembly (503) through the transmission pipe (504).

4. The oil net dust filter for civil air defense ventilation duct according to claim 2, characterized in that: The vibration component (304) comprises: A motor (3041), wherein the motor (3041) is installed in the middle of the central rod (303), and the outer wall of the motor (3041) is rotatably connected to a connecting rod (3045), and two connecting rods (3045) are provided; A counterweight block (3046), wherein the outer wall of the counterweight block (3046) is rotatably connected to the bottom of the connecting rod (3045); A fixed pad (3042) is installed on a side of the motor (3041) close to the connecting rod (3045), a spring (3043) is installed at the bottom of the fixed pad (3042), a movable pad (3044) is arranged at the bottom of the spring (3043), and the movable pad (3044) and the spring (3043) work together. When in use, the elastic force of the spring (3043) is used to make the counterweight (3046) vibrate up and down, thereby cleaning the filter (305).

5. The oil net dust filter for civil air defense ventilation duct according to claim 1, characterized in that: The collection component (502) includes: A conical plate (5021), the conical plate (5021) being mounted on the top of a bracket (501), a support rod (5025) being provided on the top of the bracket (501), the support rod (5025) propping up the conical plate (5021) from the bottom, and guide grooves (5024) being evenly provided on the surface of the conical plate (5021).

6. The oil net dust filter for civil air defense ventilation duct according to claim 5, characterized in that: The collection component (502) further includes: Ventilation holes (5023), the ventilating holes (5023) being provided on the surface of the conical plate (5021), the ventilating holes (5023) and the guide grooves (5024) being arranged in an alternating manner; The arc-shaped edge (5022) is arranged at the edge of the bottom of the conical plate (5021), and the inside of the arc-shaped edge (5022) collects and concentrates the oil flowing down from the top of the conical plate (5021).

7. The oil net dust filter for civil air defense ventilation duct according to claim 1, characterized in that: The oil absorption assembly (503) comprises: A driving seat (5031), the driving seat (5031) being mounted on the top of the bracket (501), the inner wall of the driving seat (5031) being evenly provided with rotating rods (5032), the outer wall of the rotating rods (5032) being rotatably connected to the inner wall of the driving seat (5031); An electric push rod (5033), the electric push rod (5033) being mounted on the end of the rotating rod (5032), and one end of the electric push rod (5033) away from the rotating rod (5032) being rotatably connected to a mounting plate (5034); A sponge block (5035) is fixedly connected to the mounting plate (5034), and the shape of the sponge block (5035) is consistent with the inner wall of the arc-shaped edge (5022) and the inner wall of the main box (1).

8. The oil net dust filter for civil air defense ventilation duct according to claim 3, characterized in that: The centralized component (506) includes: A mounting frame (5061), the mounting frame (5061) being arranged on the top of the collection tray (505), four mounting frames (5061) being arranged, and a fixing ring (5062) being arranged on the inner wall of the mounting frame (5061); A telescopic rod (5063) is arranged on the top of the mounting frame (5061), a connecting rod (5064) is symmetrically arranged at the movable end of the telescopic rod (5063), and an outer wall of the connecting rod (5064) is rotatably connected to the outer wall of the telescopic rod (5063).

9. The oil net dust filter for civil air defense ventilation duct according to claim 8, characterized in that: The centralized component (506) further includes: A limiting rod (5065), wherein the inner wall of the limiting rod (5065) is sleeved with the outer wall of the fixing ring (5062), and the top of the limiting rod (5065) is rotatably connected with the bottom of the connecting rod (5064); A scraper (5066) is installed at the bottom of the limiting rod (5065), and a side surface of the scraper (5066) is slidably connected to the inner wall of the collecting tray (505).

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